Published at 2:10 PM CDT on Jul 6, 2015

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WASHINGTON, DC - MARCH 10: U.S. Sen. Ted Cruz (R-TX) speaks during the 2015 Alfred K. Whitehead Legislative Conference and Presidential Forum March 10, 2015 in Washington, DC. Prospective 2016 presidential candidates from both political parties participated in the presidential forum during the conference which hosted by the International Association of Fire Fighters. (Photo by Alex Wong/Getty Images)

Cruz's own campaign has raised $14.2 million, meaning supporters have put up about $52 million to help him through the Republican primaries.

Former Florida Gov. Jeb Bush is also making use of super PACS that don't have campaign finance limits. His group Right to Rise is expected to report having raised as much as $100 million since January.